Help:
Description: 
  This version of the pm toolset is part of a university course to train     
  students in programming of Fourier based simulation methods. It supports   
  the VWPM, WPM and BPM. The VBPM is supported for completeness only.        

  Students are supposed to build their own program in the your_pm.cc and  
  your_kernel.cu files and then compile and run with a configuration file. The
  environment will compare the student results to the reference results and return 
  the maximum error as well as the electric field distribution and energy 
  energy flux for the student code.

 Usage: 
udpm   ./pm [options][-i <config-file> ]

  -b|--block-size
      size of thread blocks
  -c|--compare
      compare gpu results with cpu
  -d|--debug
      print debug information
  -f|--store-fields
      store refractive index distribution, electric field distributions and energy flux to separate .csv file
  -g|--run-gpu
      run on gpu
  -i|--config-file
      configuration file to be used
  -k|--kernel
      kernel to be used
      0 = default kernel
      1 = shared memory kernel
  -l|--layer
      layer to be used 
      specify an interger between 0 and NZ-1 if cross-section (refer to option -x) is XY
      specify an interger between 0 and NY-1 if cross-section (refer to option -x) is XZ
      specify an interger between 0 and NX-1 if cross-section (refer to option -x) is YZ
      NX, NY and NZ are specified in the configuration file (refer to option -i)
  -m|--method
      method to be used
      0 = vwpm
      1 = wpm
      2 = vbpm
      3 = bpm
  -n|--number
      specify an integer value to configure the number of iterations for the propagation method to be called. this is useful for analysis of average runtimes and to eliminate runtime penalties from setup procedures or function call sequence
  -o|--polarization
      0 = TE
      1 = TM
  -p|--run-cpu
      run on cpu
  -q|--quiet
      disables text display
  -r|--store-results
      store runtime and accuracy results to .csv file
  -v|--version
      print version
  -x|--cross-section
      0 = XY
      1 = XZ
      2 = YZ
  --skipFirst
      skip runtime of first iteration to avoid penalty from initialization procedures.
  --profOnly
      run reference code only to avoid potential latency benefits from previous runs. no field distributions are exported if specified.
  --studOnly
      run student code only to avoid potential latency benefits from previous runs. no field distributions are exported if specified.